1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx | FileCheck %s 2 3 ; Use buildFromShuffleMostly which allows this to be generated as two 128-bit 4 ; shuffles and an insert. 5 6 ; This is the (somewhat questionable) LLVM IR that is generated for: 7 ; x8.s0123456 = x8.s1234567; // x8 is a <8 x float> type 8 ; x8.s7 = f; // f is float 9 10 11 define <8 x float> @test1(<8 x float> %a, float %b) { 12 ; CHECK-LABEL: test1: 13 ; CHECK: vinsertps 14 ; CHECK-NOT: vinsertps 15 entry: 16 %shift = shufflevector <8 x float> %a, <8 x float> undef, <7 x i32> <i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> 17 %extend = shufflevector <7 x float> %shift, <7 x float> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 undef> 18 %insert = insertelement <8 x float> %extend, float %b, i32 7 19 20 ret <8 x float> %insert 21 } 22
